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P.501 : Test signals for use in telephonometry  

Recommendation P.501 (03/17)

Approved in 2017-03-01

Status : Superseded

 

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English

EPUB Document EPUB

11475171 bytes 2019-11-27 E 41442 

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173642891 bytes 2017-05-12  

 

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Updated : 2020-06-01